Improvement in combined file and screw-driver



s. HARRIS. Combined File'and Screw-Driver.

Patented Oct. 2311877.

)'% INVENTEIR WlTNE55E5 UNITED STATES PATENT OFFICE.

SAMUEL HARRIS, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN COMBINED FILE AND SCREW-DRIVER.

Specification forming part of Letters Patent No. 196, 354, dated October23, 1877; application filcd April 30, 1877.

vice with the tile in position for use. Fig. 2 is a cross-section of thesame. Fig. 3 is a longitudinal section with the screw-driver in positionfor use.

Similar letters of reference indicate corre-- sponding parts.

a represents a double handle, having ahole, a, running longitudinallyentirely through it. \Vithin this hole a are two instrmnents, rivetedtogetherviz., a file, I), and a screwdriver, c. These may be made in onepiece, if desired.

(Z is a pin, provided with a head or knob, d, and a shoulder, d.Aroundthis pin, confined between the plate I and small pins f f, is aspring, 6.

WVhen the file is in position for use, the pin (1 lies in the opening h,made in the screw-driver, being held therein by the spring 6. This holdsthe file in position, as seen in Figs. 1 and 2.

When it is desired to use the screw-driver, the pin (1 is lifted bymeans of the handle (1 constitutes a much surer and more reliable meansfor holding the tool in place in the required positions than a set-screwapplied directly or indirectly thereto, without the use of the saidgroove or openings.

The instrument can be accurately made, so that the file and screw-driverdo not rattle in the handle, and are capable of doing their worksatisfactorily.

Having thus fully described my invention,

what I claim, and desire to secure by Letters Patent, is

The combination of the tool with the groove 75, the pin 01, providedwith the spring 0, shoulder cl, small pins f f, knob 01', the holes oropenings h and g at the ends of handles, all arranged and constructedsubstantially as and for the purpose herein set forth.

SAMUEL HARRIS.

Witnesses:

HENRY W. WILLIAMS, B. W. WILLIAMs.

